Fainting

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Passed out; Light-headedness - fainting; Syncope; Vasovagal episode

If you have a history of fainting and have been seen by a medical professional, follow your doctor's instructions for how to prevent fainting episodes. For example, if you know the situations that cause you to faint, avoid or change them. Avoid sudden changes in posture. Get up from a lying or seated position slowly. If having blood drawn makes you faint, tell your health care provider before having a blood test and make sure that you are lying down when the test is done.

You can take immediate treatment steps when someone has fainted:

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• Check the person's airway and breathing. If necessary, call 911 and begin rescue breathing and CPR.
• Loosen tight clothing around the neck.
• Raise the person's feet above the level of the heart (about 12 inches).
• If vomiting has occurred, turn the person onto their side to prevent choking.
• Keep the person lying down for at least 10 - 15 minutes, preferably in a cool and quiet space. If this is not possible, sit the person forward and place their head between their knees.

Call 911 if the person who fainted:

• Fell from a height, especially if injured or bleeding
• Does not become alert quickly (within a couple of minutes)
• Is pregnant
• Is over age 50
• Has diabetes (check for medical identification bracelets)
• Feels chest pain, pressure, or discomfort
• Has a pounding or irregular heartbeat
• Has a loss of speech, visual disturbances, or inability to move one or more limbs
• Has convulsions, tongue injury, or loss of bladder or bowel control

Even if it's not an emergency situation, people should be seen by a doctor if they have never fainted before, if they are fainting frequently, or if they have new symptoms associated with fainting. Call for an appointment to be seen as soon as possible.

When you see your doctor, the focus of the questions will be to determine whether you simply fainted, or if something else happened (like a seizure or heart rhythm disturbance), and to figure out the cause of the fainting episode.